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Axillary artery and femoral artery cannula without perfusion ischemia area and application of cannula

A technique for axillary artery and femoral artery, applied in axillary artery and femoral artery cannulation and application fields, can solve the problem of difficult to achieve blood flow distribution and pressure regulation, easy damage to axillary artery subclavian vein, right common carotid artery ischemia, etc. problems, to achieve the effect of reducing limb ischemia time, shortening operation time, and reducing blood damage

Inactive Publication Date: 2014-12-17
黄晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology usually uses a straight intubation tube with a length of 20 cm, one end of which is connected to the artificial heart-lung machine arterial perfusion tube, and the other end is inserted into the right axillary artery. Because the right axillary artery is located deep, it is difficult to expose and intubate, and it is easy to damage the axillary artery. Arteries, subclavian veins, axillary nerves, etc., the operation is more difficult
Moreover, during the operation, the patient’s right upper limb at the distal end was always in an ischemic state due to the intubation facing the proximal end; an artificial blood vessel with a diameter of 8 mm was used, one end was connected to the arterial perfusion tube of the artificial heart-lung machine, and the other end had to be sutured to the right axillary artery Or the right common carotid artery, and it takes 10 minutes or more to suture the artificial blood vessel, which may lead to ischemia of the right common carotid artery, which may cause irreversible ischemic brain damage in some patients
The disadvantage of the suture method can also lead to blood leakage from the anastomosis during heparinization; in addition, the arterial perfusion of different parts must use their own proprietary straight cannula or artificial blood vessel, which cannot be used universally. Inability or difficulty with cannulation for blood flow distribution and pressure regulation as needed

Method used

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  • Axillary artery and femoral artery cannula without perfusion ischemia area and application of cannula
  • Axillary artery and femoral artery cannula without perfusion ischemia area and application of cannula
  • Axillary artery and femoral artery cannula without perfusion ischemia area and application of cannula

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Embodiment 1

[0039] Such as figure 1 , the simplest structure of the present invention includes the cannula main body 1 at the blood supply end, which is characterized in that it also includes two branch short tubes with shunt and partial pressure that communicate with the cannula main body 1—the proximal end tube 2 and the The distal end tube 3' forms a medical perfusion plastic tube with a T-shaped structure on the overall structure. The internal diameters are all taken as 8mm, and the ends of the proximal end tube 2 and the distal end tube 3 form a 45° bevel 5 to facilitate intubation.

[0040] The length of the main body of the intubation tube is 20 cm, and the length of the proximal end tube 2 and the distal end tube 3 is 1.5 cm and 1.0 cm, respectively.

Embodiment 2

[0042] Such as Figure 4 , the present invention includes a cannula main body 1 at the blood supply end, which is characterized in that it also includes a proximal end tube 2 and a distal end tube 3 communicating with the cannula main body 1, and the three are medical plastics with a Y-shaped structure on the same plane tube, and the proximal tube 2 and the cannula main body 1 at the blood supply end form an angle of 120°, that is, Q is an angle of 60° to reduce blood flow resistance and pump pressure, thereby ensuring perfusion flow and reducing blood damage.

Embodiment 3

[0044] Such as image 3 , the present invention includes a cannula main body 1 at the blood supply end, which is characterized in that it also includes two branch tubes that communicate with the cannula main body 1 and have a shunt and a partial pressure effect—a proximal end tube 2 and a distal end tube 3, forming The perfusion plastic tube for medical extracorporeal circulation with a T-shaped or Y-shaped structure in the overall structure, and the above-mentioned perfused plastic tube with a T-shaped or Y-shaped structure in the overall structure, its proximal end tube 2 and distal end tube The ends of 3 can be spherical crowns with side holes, and there are 6 symmetrically arranged side holes, and it is ensured that the total area of ​​each side hole is greater than the maximum opening area of ​​the intubation tube main body 1.

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Abstract

The invention relates to an axillary artery and femoral artery cannula without a perfusion ischemia area and application of the cannula. The axillary artery and femoral artery cannula comprises a cannula main body of a blood supply end; the axillary artery and femoral artery cannula is characterized by further comprising a proximal end tube and a distal end tube, the two of which are communicated with the cannula main body and have shunting and pressure dividing effects, and a plastic extracorporeal circulating perfusion tube which is formed on the overall structure and formed into a T-shaped or Y-shaped structure, wherein an included angle is formed between the proximal end tube of the perfusion tube of the Y-shaped structure and the cannula main body of the blood supply end so that the perfusion blood flow can be distributed or regulated. The axillary artery and femoral artery cannula without the perfusion ischemia area is applied to the axillary artery and the femoral artery on the right side to realize arterial perfusion of the whole body and selective cerebral perfusion of deep hypothermic circulatory arrest during extracorporeal circulation, and meanwhile, the ischemia of the right upper limb and the right lower limb can be avoided; obviously, the axillary artery and femoral artery cannula without the ischemia area is capable of realizing the distribution and control of the perfusion blood flow, and no perfusion ischemia area is formed during extracorporeal circulation; besides, the axillary artery and femoral artery cannula is convenient to operate and high in universality; the operation time can be greatly reduced so that the limb ischemia time can be reduced; in short, the axillary artery and femoral artery cannula without the perfusion ischemia area can be widely applied.

Description

[0001] technology field. [0002] The invention relates to the field of medical devices, in particular to an axillary artery and a femoral artery cannula without perfusion ischemia and its application. Background technique [0003] The existing technology usually uses a straight intubation tube with a length of 20 cm, one end of which is connected to the artificial heart-lung machine arterial perfusion tube, and the other end is inserted into the right axillary artery. Because the right axillary artery is located deep, it is difficult to expose and intubate, and it is easy to damage the axillary artery. Arteries, subclavian veins, and axillary nerves are more difficult to operate. Moreover, during the operation, the patient’s right upper limb at the distal end was always in an ischemic state due to the intubation facing the proximal end; an artificial blood vessel with a diameter of 8 mm was used, one end was connected to the arterial perfusion tube of the artificial heart-lun...

Claims

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Application Information

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IPC IPC(8): A61M25/14
Inventor 黄晓朱蕾黄强
Owner 黄晓
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